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Finding the Fourth Proportional to 633,707.50, 874,516.35 and 347,238.46

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Solution

The fourth proportional to 633,707.50, 874,516.35 and 347,238.46 is: 479,189.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,707.50 : 874,516.35 = 347,238.46 : x
  2. Step 2: Convert to fraction form
    633,707.50/874,516.35 = 347,238.46/x
  3. Step 3: Cross multiply
    633,707.50x = 874,516.35 × 347,238.46
  4. Step 4: Simplify right side
    633,707.50x = 303,665,710,618.82
  5. Step 5: Solve for x
    x = 303,665,710,618.82/633,707.50
  6. Step 6: Final answer
    x = 479,189.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.